Bug Description

Upon applying updates for ATI display drivers, my screen now produces vertical lines while browsing on Firefox. I have an older laptop, with the ATI Radeon Mobility M6 LY video display card (??). Not sure if it's Xgl that might be causing the issue, and I've also had a problem with Advanced Desktop, as well (crashing - already reported).

If you, pleasant bug fixer-person, need more information, please kindly tell me how to obtain it on my machine, and I will post it here ASAP.

Thank you for taking the time to report this bug and helping to make Ubuntu better. Could you please add your '/etc/X11/xorg.conf' file and your '/var/log/Xorg.0.log' file as attachments to your bug report? Thanks in advance.

I have done the update, and am not noticing vertical lines anymore. However, I am now not able to use my scroll button on my scratchpad - I posted a question (#14769) and am thinking the two are related - but only because of the information I saw when I posted all that stuff above. I could be completely wrong, which wouldn't be out of the ordinary at all.

Legend:
Pipes (|) are green or something similar lines which are all 1 px wide, and which are sometimes broken in some places by black.
Hashes (#) are black and all about 10-15 px wide. The height of the top and bottom horizontal bars are about 20 px, while the middle ones are about half that. The middle gap is about the same height as the middle bars, while the top and bottom gaps are slightly thinner (maybe 6 px). The desktop contents are visible in the gaps.

The artifacts stay in the same place even if I move the Firefox window.

The artifacts do /not/ show up in a screenshot of the entire desktop.

More interesting, the artifacts /disappear/ if I open the ATI Catalyst Control Center and press "OK" there. They reappear the next time I start Firefox.

I did /not/ have this problem with the previous version of the driver (8.40.something).